Why do AFM engines burn oil?
Why do AFM engines burn oil? The system uses an oil pressure relief valve that sprays oil directly onto the piston skirts, but this oil spray can allegedly overload the piston rings, leaking past the rings and burning off, or accumulating on the surface of the combustion chamber and causing carbon buildup. Is Chevy discontinuing the 5.3 engine? Also being discontinued for 2022 is the 5.3L EcoTec3 V8 gasoline engine with Dynamic Fuel Management (DFM), which is one of the technologies GM uses in order to improve fuel economy. This engine produces 310 horsepower and 348 lb. Why does my...